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Aikesheng Open Source Community
Aikesheng Open Source Community
May 19, 2025 · Databases

Can MySQL Group Replication Power Dual‑Active Data Centers? A Practical Test Script

This article presents a detailed design, implementation, and automated testing script that evaluates whether MySQL Group Replication can support dual‑data‑center active‑active deployments, covering deployment steps, replication modes, fault simulation, data consistency checks, and key conclusions.

Active-ActiveAutomationGroup Replication
0 likes · 16 min read
Can MySQL Group Replication Power Dual‑Active Data Centers? A Practical Test Script
Ma Wei Says
Ma Wei Says
Apr 8, 2025 · Operations

Mastering High Availability: 4 Failover Patterns Explained

Understanding high‑availability architectures involves mastering replication and fail‑over, balancing RTO and RPO, and choosing among four patterns—Active‑Standby, Active‑Active, Cold Standby, and Hot Standby—each with distinct synchronization, load‑balancing, and cost considerations for reliable system design.

Active-ActiveReplicationactive standby
0 likes · 9 min read
Mastering High Availability: 4 Failover Patterns Explained
dbaplus Community
dbaplus Community
Apr 25, 2024 · Operations

How We Built Same‑City Active‑Active Architecture for a High‑Volume Transaction Platform

This article details the background, design principles, overall architecture, concrete refactoring steps, launch process, results, and emerging challenges of implementing a same‑city active‑active solution to improve reliability, load balancing, disaster recovery, and cost efficiency for a large‑scale transaction system.

Active-ActiveBlue‑Green deploymentMulti‑AZ
0 likes · 23 min read
How We Built Same‑City Active‑Active Architecture for a High‑Volume Transaction Platform
Top Architecture Tech Stack
Top Architecture Tech Stack
Nov 22, 2023 · Operations

Designing Multi‑Active (Active‑Active) Architecture Across Regions: Scenarios, Patterns, and Practical Techniques

This article explains the motivations, application scenarios, architectural patterns, and step‑by‑step design techniques for building geographically distributed active‑active systems that can survive extreme failures while balancing cost, complexity, and data consistency requirements.

Active-ActiveDistributed SystemsSystem Design
0 likes · 32 min read
Designing Multi‑Active (Active‑Active) Architecture Across Regions: Scenarios, Patterns, and Practical Techniques
ITPUB
ITPUB
Mar 14, 2023 · Big Data

How to Build Real-Time Active‑Active Disaster Recovery for OLAP MPP Clusters

This article explains why disaster‑recovery and active‑active architectures are essential for OLAP MPP data‑warehouse clusters, outlines the specific RPO/RTO requirements for batch and real‑time workloads, and compares several data‑synchronization techniques and active‑active deployment models with their advantages and drawbacks.

Active-ActiveMPPOLAP
0 likes · 12 min read
How to Build Real-Time Active‑Active Disaster Recovery for OLAP MPP Clusters
Programmer DD
Programmer DD
Oct 11, 2022 · Operations

How to Achieve High Availability for Stateful Backend Services?

This article explores various high‑availability strategies for stateful backend services, comparing cold backup, active/standby, same‑city active‑active, and multi‑site active‑active solutions, discussing their benefits, limitations, and practical implementation examples from large‑scale internet companies.

Active-ActiveBackend Architecturedisaster recovery
0 likes · 17 min read
How to Achieve High Availability for Stateful Backend Services?
MaGe Linux Operations
MaGe Linux Operations
Sep 30, 2022 · Operations

Mastering High Availability: From Cold Backups to Multi-Region Active-Active

This article examines high‑availability strategies for stateful backend services, comparing cold backup, hot standby, same‑city active‑active, cross‑region active‑active, and multi‑active architectures, highlighting their advantages, limitations, and practical implementation considerations such as downtime, data loss, synchronization overhead, and conflict resolution.

Active-ActiveBackend Architecturehigh availability
0 likes · 14 min read
Mastering High Availability: From Cold Backups to Multi-Region Active-Active
Efficient Ops
Efficient Ops
Sep 29, 2022 · Operations

Mastering High Availability: From Cold Backups to Multi‑Active Disaster Recovery

This article explores the evolution of high‑availability strategies for stateful backend services, comparing cold backups, active/standby, same‑city and cross‑city active‑active setups, and discusses the trade‑offs, design considerations, and real‑world implementations of multi‑active and multi‑active architectures.

Active-ActiveBackend Architectureactive standby
0 likes · 16 min read
Mastering High Availability: From Cold Backups to Multi‑Active Disaster Recovery
Zuoyebang Tech Team
Zuoyebang Tech Team
Jul 13, 2022 · Cloud Computing

Why Multi-Cloud Active-Active Architecture Is the Key to Stability and Cost Efficiency

This article explores the motivations, challenges, and design principles behind adopting a multi‑cloud active‑active architecture, emphasizing how it enhances stability, reduces costs, and improves efficiency, while detailing practical solutions for networking, compute, containers, service discovery, traffic routing, and data storage in a cloud‑native environment.

Active-Activearchitecturecloud-native
0 likes · 14 min read
Why Multi-Cloud Active-Active Architecture Is the Key to Stability and Cost Efficiency
HelloTech
HelloTech
Apr 29, 2022 · Operations

Multi-Active Deployment Modes, Routing Rules, and Unitization in Data Center Architecture

The article explains multi‑active deployment modes—same‑city, cross‑city, and cross‑city multi‑active—along with routing rules (random, user‑ID, region) and unitization, describing how sharding IDs map traffic to central or unit data centers, and detailing middleware solutions for storage, messaging, SOA, and Snowflake ID generation to achieve scalable, highly available architecture.

Active-ActiveData centerhigh availability
0 likes · 10 min read
Multi-Active Deployment Modes, Routing Rules, and Unitization in Data Center Architecture
Alibaba Cloud Native
Alibaba Cloud Native
Jan 3, 2022 · Cloud Native

How to Build Minute‑Level Hybrid Cloud Disaster Recovery with MSHA Multi‑Active Architecture

This guide walks through a hybrid cloud disaster‑recovery demo for an e‑commerce platform, detailing business background, requirements, challenges, the MSHA‑based active‑active solution, step‑by‑step implementation, and verification of sub‑minute RPO/RTO using Alibaba Cloud services and Chaos engineering.

Active-ActiveAlibaba CloudMSHA
0 likes · 13 min read
How to Build Minute‑Level Hybrid Cloud Disaster Recovery with MSHA Multi‑Active Architecture
Architect
Architect
Dec 31, 2021 · Operations

Understanding Distributed System High Availability: From Single‑Node to Multi‑Active Architecture

This article explains the principles, evolution, and implementation details of high‑availability architectures—from basic single‑node setups to multi‑active, cross‑region deployments—covering redundancy, disaster recovery, data synchronization, routing strategies, and the challenges of achieving true geo‑distributed active‑active systems.

Active-ActiveDistributed SystemsSystem Architecture
0 likes · 30 min read
Understanding Distributed System High Availability: From Single‑Node to Multi‑Active Architecture
High Availability Architecture
High Availability Architecture
Nov 5, 2021 · Cloud Native

Multi-Cloud Active‑Active Architecture: Design, Benefits, and Challenges

The article examines why multi‑cloud active‑active (multi‑active) deployments are essential for high availability, outlines common disaster‑recovery patterns such as primary‑backup and active‑active, details the technical workflow of traffic routing, business and storage layers, and discusses the practical advantages and drawbacks of this approach.

Active-Activearchitecturecloud-native
0 likes · 10 min read
Multi-Cloud Active‑Active Architecture: Design, Benefits, and Challenges
Full-Stack Internet Architecture
Full-Stack Internet Architecture
Oct 20, 2021 · Operations

Understanding Geo-Distributed Active-Active Architecture: Principles, Risks, and Implementation Strategies

This article explains the concept of geo-distributed active‑active (multi‑active) systems, covering architectural principles, availability metrics, redundancy techniques such as master‑slave replication, cold and hot disaster recovery, same‑city and cross‑city active‑active setups, data synchronization challenges, and practical routing and sharding methods to achieve high availability and scalability.

Active-ActiveSystem Architecturedisaster recovery
0 likes · 29 min read
Understanding Geo-Distributed Active-Active Architecture: Principles, Risks, and Implementation Strategies
Architects' Tech Alliance
Architects' Tech Alliance
Aug 15, 2021 · Operations

Enterprise Multi‑Data Center Evolution: From Two‑Region Three‑Center to Distributed Active/Active Architecture

The article explains how enterprises are moving from traditional primary‑backup and two‑region three‑center data‑center models toward distributed active/active data‑center architectures to achieve continuous 24/7 operations, higher resource utilization, and fault‑transparent services, while outlining the technical and organizational challenges involved.

Active-ActiveIT Operationsdisaster recovery
0 likes · 10 min read
Enterprise Multi‑Data Center Evolution: From Two‑Region Three‑Center to Distributed Active/Active Architecture
IT Architects Alliance
IT Architects Alliance
Jul 8, 2021 · Operations

Mastering High Availability: From Cold Backup to Multi‑Region Active‑Active

This article analyzes various high‑availability strategies for stateful backend services—covering cold backup, dual‑machine hot standby, same‑city active‑active, remote active‑active, and multi‑region active‑active architectures—detailing their benefits, limitations, and practical implementation considerations.

Active-ActiveSystem Designbackend operations
0 likes · 14 min read
Mastering High Availability: From Cold Backup to Multi‑Region Active‑Active
dbaplus Community
dbaplus Community
Jun 9, 2021 · Databases

How to Enable Multi‑Data‑Center Active‑Active Redis with Bidirectional Sync and rLog

This article explains how a company extended native Redis to support bidirectional synchronization across multiple data‑center sites, addressing issues such as lack of master‑master replication, data loops, idempotency, write conflicts, and providing a custom rLog design for efficient breakpoint‑resume and performance.

Active-ActiveDataSyncReplication
0 likes · 16 min read
How to Enable Multi‑Data‑Center Active‑Active Redis with Bidirectional Sync and rLog
ITFLY8 Architecture Home
ITFLY8 Architecture Home
May 22, 2021 · Operations

How Active‑Active Data Centers Boost Resilience and Resource Efficiency

The article explains hot standby, cold standby, and active‑active (dual‑active) data center architectures, compares their advantages and drawbacks, outlines deployment challenges, and highlights the role of cloud computing and automation in achieving high availability and optimal resource utilization.

Active-Activecloud computingdisaster recovery
0 likes · 12 min read
How Active‑Active Data Centers Boost Resilience and Resource Efficiency
Architects' Tech Alliance
Architects' Tech Alliance
May 14, 2021 · Industry Insights

Why Distributed Active/Active Data Centers Are the Future of Enterprise IT

The article examines how enterprises are moving from traditional primary‑backup and two‑site‑three‑center architectures toward distributed active/active data centers, outlining the concepts of distribution and multi‑activity, the technical challenges involved, and the operational benefits of higher availability and resource efficiency.

Active-ActiveIT Operationscloud computing
0 likes · 9 min read
Why Distributed Active/Active Data Centers Are the Future of Enterprise IT
Programmer DD
Programmer DD
Feb 20, 2021 · Big Data

How Uber Built a Multi‑Region Kafka Architecture for Disaster Recovery

Uber operates the world’s largest Kafka cluster, handling trillions of messages daily, and has engineered a multi‑region deployment with active/active and active/passive consumption modes, offset management, and uReplicator to ensure high‑availability and seamless disaster recovery across data centers.

Active-ActiveActive-PassiveKafka
0 likes · 10 min read
How Uber Built a Multi‑Region Kafka Architecture for Disaster Recovery
Dada Group Technology
Dada Group Technology
Sep 9, 2020 · Cloud Computing

Dada Dual-Cloud Active-Active Disaster Recovery: Architecture, Practices, and Lessons Learned

This article details Dada's dual‑cloud active‑active disaster‑recovery implementation, explaining high availability versus disaster recovery, describing the first‑phase architecture and challenges, and outlining the second‑phase enhancements such as multi‑data‑center Consul, bidirectional database replication, precise load‑balancing, tool adaptations, capacity elasticity, and future plans.

Active-ActiveConsulDatabase Replication
0 likes · 13 min read
Dada Dual-Cloud Active-Active Disaster Recovery: Architecture, Practices, and Lessons Learned
Efficient Ops
Efficient Ops
Mar 17, 2019 · Operations

Why Cold-Standby Disaster Recovery Fails and How Active‑Active Architecture Wins

Modern cloud outages reveal that cold‑standby or simple multi‑cloud promises often provide only psychological comfort; achieving true high availability requires active‑active designs with local traffic handling, data partitioning, and low‑latency synchronization, while balancing cost, complexity, and physical distance constraints.

Active-ActiveLatencydata synchronization
0 likes · 10 min read
Why Cold-Standby Disaster Recovery Fails and How Active‑Active Architecture Wins
Efficient Ops
Efficient Ops
Jun 10, 2018 · Databases

How MongoDB Enables Active‑Active Multi‑Data‑Center Architectures

This article examines the requirements of active‑active applications across multiple data centers, compares distributed database architectures—including two‑phase commit, multi‑master, and sharded designs—and explains how MongoDB’s sharding and write/read concerns enable high availability, consistency, and rapid failover in such environments.

Active-ActiveMongoDBMulti-Data Center
0 likes · 16 min read
How MongoDB Enables Active‑Active Multi‑Data‑Center Architectures
ITPUB
ITPUB
Jun 5, 2018 · Operations

How Meituan Achieved Near‑Zero Downtime for Its Account Service

This article details Meituan's practical approaches to boosting account service reliability, covering MTBF/MTTR metrics, business‑level monitoring, flexible availability with circuit‑breaker patterns, cross‑region active‑active deployment, data synchronization techniques, and the measurable performance gains achieved.

Active-ActiveDistributed Systemscircuit breaker
0 likes · 13 min read
How Meituan Achieved Near‑Zero Downtime for Its Account Service
dbaplus Community
dbaplus Community
Feb 1, 2018 · Databases

Building a Reliable Geo‑Active Dual‑Active Architecture for Massive Online Games

This article details a two‑stage approach for creating a geo‑distributed active‑active infrastructure for large‑scale games, covering a pseudo active‑active design with private lines and smart DNS, followed by a true active‑active solution using Redis Sentinel and MySQL clustering with performance comparisons.

Active-ActiveGame BackendMySQL Cluster
0 likes · 8 min read
Building a Reliable Geo‑Active Dual‑Active Architecture for Massive Online Games
Architects' Tech Alliance
Architects' Tech Alliance
Sep 17, 2017 · Operations

Understanding IBM PowerHA HyperSwap and SVC HyperSwap Active‑Active Storage Solutions

The article explains how IBM PowerHA SystemMirror 7.1 and Spectrum Virtualize/SVC HyperSwap enable active‑active, cross‑site storage architectures using Metro Mirror, detailing their history, topology, failover mechanisms, performance characteristics, volume‑group features, and operational advantages for high‑availability environments.

Active-ActiveHyperSwapIBM
0 likes · 13 min read
Understanding IBM PowerHA HyperSwap and SVC HyperSwap Active‑Active Storage Solutions
Ctrip Technology
Ctrip Technology
Dec 9, 2016 · Operations

Design and Implementation of Ctrip Call Center's Active‑Active Architecture and Unified Login

The article details Ctrip's call‑center architecture evolution, describing the multi‑layer active‑active design, public access, application and client layers, unified login mechanisms, operational challenges, disaster‑recovery drills, and future plans for software‑only and mobile agents, illustrating practical SRE principles in a large‑scale telephony system.

Active-ActiveIP phoneSRE
0 likes · 22 min read
Design and Implementation of Ctrip Call Center's Active‑Active Architecture and Unified Login
Alibaba Cloud Developer
Alibaba Cloud Developer
Sep 5, 2016 · Operations

Avoid Common Pitfalls in Geo-Active High-Availability Design

This article examines common misconceptions in designing geo-distributed active-active systems, explains why striving for perfect real-time data sync is unrealistic, and offers practical strategies—such as prioritizing core services, reducing distance, limiting data replication, and combining storage sync with messaging—to achieve reliable high-availability.

Active-ActiveData ConsistencySystem Design
0 likes · 17 min read
Avoid Common Pitfalls in Geo-Active High-Availability Design
Architecture Digest
Architecture Digest
Jun 15, 2016 · Operations

Design and Implementation of Multi‑Site Active‑Active Disaster Recovery for Call Centers

The article describes how a large‑scale call center evolves to a multi‑site architecture and implements system‑level active‑active disaster recovery using Ctrip's contact‑center and unified login platforms, detailing the login flow, fault‑detection logic, key features, and future extensions.

Active-ActiveSystem Architecturecall center
0 likes · 6 min read
Design and Implementation of Multi‑Site Active‑Active Disaster Recovery for Call Centers
Architects' Tech Alliance
Architects' Tech Alliance
Apr 24, 2016 · Operations

Comprehensive Overview of Data Center Active‑Active (Dual‑Active) Solutions

This article provides an in‑depth technical overview of data‑center active‑active architectures, covering network interconnects, storage SAN/Fibre Channel links, application clustering, arbitration mechanisms, gateway‑based designs, technical requirements, and practical limitations for achieving end‑to‑end high availability.

Active-ActiveData centerNetwork Interconnect
0 likes · 14 min read
Comprehensive Overview of Data Center Active‑Active (Dual‑Active) Solutions
Alibaba Cloud Infrastructure
Alibaba Cloud Infrastructure
May 27, 2015 · Databases

Design and Application of Alibaba's Data Replication Center (DRC) for Active‑Active Scenarios

The article presents an overview of Alibaba's Data Replication Center (DRC), detailing its architecture, real‑time cross‑region synchronization capabilities, consistency and latency guarantees, deployment strategies, and its use cases on Alibaba Cloud such as RDS migration and multi‑active e‑commerce workloads.

Active-ActiveAlibaba CloudDRC
0 likes · 10 min read
Design and Application of Alibaba's Data Replication Center (DRC) for Active‑Active Scenarios